My other half uses a transcription service, SpinVox for her mobile phone which takes the messages and sends them via text message and email. Unfortunately I have a rather non-standard accent, what with the elocution lessons my parents made me take during my childhood in Northern Ireland, spending half my life in England and my default ability to try to match the speaking patterns of who I am talking to. It consistently mangles it's transcription of my messages.
You could set SpinVox to use British English, which is supported along with French, Spanish, German, Portuguese and Italian. Their service reportedly achieves above 95% accuracy.
opera ie mozilla (firefox/ netscape) webkit (safarit/ chrome)
FYI, Opera's engine is called Presto, IE's Trident, and Mozilla's Gecko.
am i missing any (competitive, comprehensive) engines?
Maybe Konqueror's KHTML.
"Take that, you hostile sons-of-bitches!" -- James Coburn, in the finale of _The_President's_Analyst_